Implement missing pause/resume support for NuPlayer.

Change-Id: Ia3f1ce521dd4b70e134ef03aa7c9db8e8d39a134
related-to-bug: 2368598

4 files changed, 85 insertions, 5 deletions

diff --git a/media/libmediaplayerservice/nuplayer/NuPlayer.cpp b/media/libmediaplayerservice/nuplayer/NuPlayer.cpp
index 7f534c0..1fcf92b 100644
--- a/media/libmediaplayerservice/nuplayer/NuPlayer.cpp
+++ b/media/libmediaplayerservice/nuplayer/NuPlayer.cpp
@@ -92,11 +92,11 @@ void NuPlayer::start() {
 }
 
 void NuPlayer::pause() {
-    // XXX to be implemented
+    (new AMessage(kWhatPause, id()))->post();
 }
 
 void NuPlayer::resume() {
-    // XXX to be implemented
+    (new AMessage(kWhatResume, id()))->post();
 }
 
 void NuPlayer::resetAsync() {
@@ -430,6 +430,20 @@ void NuPlayer::onMessageReceived(const sp<AMessage> &msg) {
             break;
         }
 
+        case kWhatPause:
+        {
+            CHECK(mRenderer != NULL);
+            mRenderer->pause();
+            break;
+        }
+
+        case kWhatResume:
+        {
+            CHECK(mRenderer != NULL);
+            mRenderer->resume();
+            break;
+        }
+
         default:
             TRESPASS();
             break;
diff --git a/media/libmediaplayerservice/nuplayer/NuPlayer.h b/media/libmediaplayerservice/nuplayer/NuPlayer.h
index 339b628..bb65162 100644
--- a/media/libmediaplayerservice/nuplayer/NuPlayer.h
+++ b/media/libmediaplayerservice/nuplayer/NuPlayer.h
@@ -75,6 +75,8 @@ private:
         kWhatRendererNotify,
         kWhatReset,
         kWhatSeek,
+        kWhatPause,
+        kWhatResume,
     };
 
     wp<NuPlayerDriver> mDriver;
diff --git a/media/libmediaplayerservice/nuplayer/NuPlayerRenderer.cpp b/media/libmediaplayerservice/nuplayer/NuPlayerRenderer.cpp
index 5833697..93e5c14 100644
--- a/media/libmediaplayerservice/nuplayer/NuPlayerRenderer.cpp
+++ b/media/libmediaplayerservice/nuplayer/NuPlayerRenderer.cpp
@@ -42,7 +42,8 @@ NuPlayer::Renderer::Renderer(
       mFlushingVideo(false),
       mHasAudio(mAudioSink != NULL),
       mHasVideo(true),
-      mSyncQueues(mHasAudio && mHasVideo) {
+      mSyncQueues(mHasAudio && mHasVideo),
+      mPaused(false) {
 }
 
 NuPlayer::Renderer::~Renderer() {
@@ -93,6 +94,14 @@ void NuPlayer::Renderer::signalTimeDiscontinuity() {
     mSyncQueues = mHasAudio && mHasVideo;
 }
 
+void NuPlayer::Renderer::pause() {
+    (new AMessage(kWhatPause, id()))->post();
+}
+
+void NuPlayer::Renderer::resume() {
+    (new AMessage(kWhatResume, id()))->post();
+}
+
 void NuPlayer::Renderer::onMessageReceived(const sp<AMessage> &msg) {
     switch (msg->what()) {
         case kWhatDrainAudioQueue:
@@ -151,6 +160,18 @@ void NuPlayer::Renderer::onMessageReceived(const sp<AMessage> &msg) {
             break;
         }
 
+        case kWhatPause:
+        {
+            onPause();
+            break;
+        }
+
+        case kWhatResume:
+        {
+            onResume();
+            break;
+        }
+
         default:
             TRESPASS();
             break;
@@ -158,7 +179,7 @@ void NuPlayer::Renderer::onMessageReceived(const sp<AMessage> &msg) {
 }
 
 void NuPlayer::Renderer::postDrainAudioQueue() {
-    if (mDrainAudioQueuePending || mSyncQueues) {
+    if (mDrainAudioQueuePending || mSyncQueues || mPaused) {
         return;
     }
 
@@ -254,7 +275,7 @@ void NuPlayer::Renderer::onDrainAudioQueue() {
 }
 
 void NuPlayer::Renderer::postDrainVideoQueue() {
-    if (mDrainVideoQueuePending || mSyncQueues) {
+    if (mDrainVideoQueuePending || mSyncQueues || mPaused) {
         return;
     }
 
@@ -528,5 +549,39 @@ void NuPlayer::Renderer::notifyPosition() {
     notify->post();
 }
 
+void NuPlayer::Renderer::onPause() {
+    CHECK(!mPaused);
+
+    mDrainAudioQueuePending = false;
+    ++mAudioQueueGeneration;
+
+    mDrainVideoQueuePending = false;
+    ++mVideoQueueGeneration;
+
+    if (mHasAudio) {
+        mAudioSink->pause();
+    }
+
+    mPaused = true;
+}
+
+void NuPlayer::Renderer::onResume() {
+    CHECK(mPaused);
+
+    if (mHasAudio) {
+        mAudioSink->start();
+    }
+
+    mPaused = false;
+
+    if (!mAudioQueue.empty()) {
+        postDrainAudioQueue();
+    }
+
+    if (!mVideoQueue.empty()) {
+        postDrainVideoQueue();
+    }
+}
+
 }  // namespace android
 
diff --git a/media/libmediaplayerservice/nuplayer/NuPlayerRenderer.h b/media/libmediaplayerservice/nuplayer/NuPlayerRenderer.h
index dbf3ecf..703e971 100644
--- a/media/libmediaplayerservice/nuplayer/NuPlayerRenderer.h
+++ b/media/libmediaplayerservice/nuplayer/NuPlayerRenderer.h
@@ -41,6 +41,9 @@ struct NuPlayer::Renderer : public AHandler {
 
     void signalAudioSinkChanged();
 
+    void pause();
+    void resume();
+
     enum {
         kWhatEOS,
         kWhatFlushComplete,
@@ -60,6 +63,8 @@ private:
         kWhatQueueEOS,
         kWhatFlush,
         kWhatAudioSinkChanged,
+        kWhatPause,
+        kWhatResume,
     };
 
     struct QueueEntry {
@@ -91,6 +96,8 @@ private:
     bool mHasVideo;
     bool mSyncQueues;
 
+    bool mPaused;
+
     void onDrainAudioQueue();
     void postDrainAudioQueue();
 
@@ -101,6 +108,8 @@ private:
     void onQueueEOS(const sp<AMessage> &msg);
     void onFlush(const sp<AMessage> &msg);
     void onAudioSinkChanged();
+    void onPause();
+    void onResume();
 
     void notifyEOS(bool audio);
     void notifyFlushComplete(bool audio);